TM-9-2350-311-34-2
CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-2 - Page 79 of 552
TM 9-2350-311-34-2
Section IV. TROUBLESHOOTING
2-20 GENERAL
Information in this section is for use by maintenance personnel in conjunction with and as a supplement to, the trouble-
shooting sections in TM 9-2350-311-10 and TM 9-2350-311-20-2. This section provides a continuation of trouble-
shooting instructions where a remedy in TM 9-2350-311-20-2 refers to support maintenance.
The purpose of troubleshooting is to make a quick and accurate diagnosis of a problem in order to correct it without unnec-
essary labor and expense, to avoid further damage to a component, and to restore vehicle system to full operational capa-
bility.
2-21 INITIAL SETUP
Tools, materials/parts, and any conditions necessary to complete a troubleshooting task will be listed at the beginning of
each troubleshooting tree.
2-22 WICK GUIDE TO TROUBLESHOOTING
2-22.1 Contents of Quick Guide to Troubleshooting
The QUICK GUIDE TO TROUBLESHOOTING lists the items to check, possible symptoms with each item, and a reference
to a paragraph where a corrective action for the problem can be found.
2-22.2 Inspection
Always conduct a detailed and thorough visual inspection before operating or disassembling a component. Look for dam-
aged, distorted, or deformed parts; loose electrical connections; hydraulic oil leakage; dirt or foreign matter; evidence of
overheating, as indicated by burnt paint or blued steel; insufficient or excess lubrication; excessive wear; loose fittings or
missing fasteners; rust or corrosion; obstructions and interferences with other parts; or any other abnormalities.
2-17
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